‘Swimming mosquitoes’: a key stepping stone to prevent Dengue, Zika and Chikungunya: an educative experience in Colima, Mexico

2019 ◽  
Vol 34 (4) ◽  
pp. 389-399 ◽  
Author(s):  
Paula Medone ◽  
Carlos M Hern�ndez-Su�rez

Abstract Dengue, Zika and Chikungunya arboviruses (DZC), mainly transmitted by mosquito Aedes aegypti, are global health public issues affecting 390 million people each year. In most endemic countries, vector control strategies have been focused on reducing breeding sites and adult mosquito populations. Most health communication strategies have pointed out adult mosquito as the main responsible of the transmission, persuading people to eliminate domestic containers. However, it is not clear how should people understand the relationship between adult mosquitoes and water domestic containers. So, the main goal of the present study was to assess the people understanding of this relationship. Results showed that most people associate adult mosquitoes with DZC, but only few could associate swimming larvae with mosquitoes. The unawareness of larva presence leads to an underestimation of risk perception about DZC transmission. In this context, we consider that educative interventions for health promotion, based on meaningful knowledge and social representations arise as long-term strategies to control transmission of vector-borne diseases. Here, we propose innovative health strategies focused on increase the risk perception about swimming larvae, considering social representations, which may be a key stepping stone to increase people adherence to massive campaigns and reducing DZC burden.

Author(s):  
A. Soltani ◽  
Z. Hoseini ◽  
K. Azizi ◽  
H. Alipour

Mosquitoes have always played an important role in transmitting a wide range of viral and parasitic diseases to humans and animals. Given that so far there has been no study on the fauna, distribution and characteristics of mosquito habitats in Qir and Karzin County, we decided to investigate these unknown data in this important tropical area in south of Iran for the first time. Adult mosquitoes were collected by hand-catch and total catch methods from indoor and outdoor places in Qir and Karzin Counties from four different geographical regions during the activity seasons of mosquitoes in 2017-18. Also, larvae were collected from aquatic habitats using WHO recommended standard dipper. Collected mosquitoes were identified using valid taxonomic keys. A total of 1884 specimens of Culicidae mosquitoes (1103 adults and 781 larvae) were collected from twenty-one sampling areas during the mosquito activity seasons in Qir and Karzin County. Totally 11 species in 3 genera (7 Culex, 3 Anopheles and 1 Culiseta species) were identified. The dominant larva was Cx. laticinctus with a total number of 227 (29%), and Cx. sinaiticus with 407 specimens (36.9%) which was the most frequent adult mosquito. Most larval habitats in this area were sunny and almost without vegetation breeding sites with temporary, turbid and stagnant water. In this region, compared to the area of the County, there was considerable species diversity for mosquitoes. This phenomenon is very important from an ecological and health point of view. Due to the existence of some important vectors of arthropod-borne diseases in this region, the health system should be alert and continuous and accurate monitoring of these vectors should be included in the routine vector-borne diseases control program.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Ranju Ravindran Santhakumari Manoj ◽  
Maria Stefania Latrofa ◽  
Sara Epis ◽  
Domenico Otranto

Abstract Background Wolbachia is an obligate intracellular maternally transmitted, gram-negative bacterium which forms a spectrum of endosymbiotic relationships from parasitism to obligatory mutualism in a wide range of arthropods and onchocercid nematodes, respectively. In arthropods Wolbachia produces reproductive manipulations such as male killing, feminization, parthenogenesis and cytoplasmic incompatibility for its propagation and provides an additional fitness benefit for the host to protect against pathogens, whilst in onchocercid nematodes, apart from the mutual metabolic dependence, this bacterium is involved in moulting, embryogenesis, growth and survival of the host. Methods This review details the molecular data of Wolbachia and its effect on host biology, immunity, ecology and evolution, reproduction, endosymbiont-based treatment and control strategies exploited for filariasis. Relevant peer-reviewed scientic papers available in various authenticated scientific data bases were considered while writing the review. Conclusions The information presented provides an overview on Wolbachia biology and its use in the control and/or treatment of vectors, onchocercid nematodes and viral diseases of medical and veterinary importance. This offers the development of new approaches for the control of a variety of vector-borne diseases. Graphic Abstract


Author(s):  
Patsaraporn Somboonsak

<p class="0abstract">Dengue remains a significant problem that needs to be addressed urgently in Thailand. Although Thailand has spread the dengue fever for more than sixty years, however, it is still found dengue patients in every province and spread to various areas. There is also a variable pattern of disease occurring each year, so it is necessary to have tools to help forecast area to allow the related organization and the people in the area plan to prevent dengue fever that may occur next year. This research aimed to create innovation for predicting dengue fever regions, namely ThaiDengue, by collecting data from dengue patients in Chatuchak District, Bangkok, Thailand, from January 2014 to December 2018. There was a total of 358,524 dengue patients from the Bureau of vector-borne diseases applied to the prediction of patients in the next year with the ARIMA model (1,1,0) (1,1,0). It is predicted that in 2019, Thailand will have dengue patients around 95,000 cases, which has the number of dengue patients close to the year 2018. In the next step, application development and database on fog computing. Fog computing is an evolving technology that brings the benefits achieved by could computing to the periphery of the network devices for faster data analytics. It is better suited than cloud computing for meeting the demands of numerous emerging applications such as self-driving cars, traffic lights, smart homes. While the ThaiDengue consists of the main menu: how to use, forecast, surveillance calendar, notification, disease map, notify patients, contact the Bureau of vector-borne, knowledge information, and scan the QR code. After that, the result of the development, the researcher has the Bureau of vector-borne disease of Thailand used to forecasts, create a GPS map of dengue outbreaks, and create a calendar for dengue monitoring.  After that, send a message to alert the people in the area of dengue via a smartphone and send additional emails. The results from using the application found this application can be used as a tool to help the Bureau of vector-borne diseases, to plan dengue fever control and alert the people in the risk areas of dengue outbreak and users are very satisfied with the use of the application.</p>


2021 ◽  
Vol 948 (1) ◽  
pp. 012039
Author(s):  
D Novianto ◽  
U K Hadi ◽  
S Soviana ◽  
Supriyono ◽  
H S Darusman

Abstract Mosquito larvae play an essential role in the ecological, and many of them can spread human and animal diseases, including in Macaca fascicularis. Information on mosquito species and their habitats can provide an overview of the role of mosquitoes in the spread of vector-borne diseases in M. fascicularis captivity area. This study aimed to identify species diversity of mosquito larvae, species affinity and association, and the larval breeding sites around M. fascicularis captivity area in Bogor, West Java. Mosquito larvae were collected from 102 sites using a 350 ml dipper. Mosquito larvae that were successfully collected consisted of 11 species; Aedes albopictus, Ae. aegypti, Armigeres subalbatus, Anopheles aconitus, An. kochi, An. vagus, Culex fuscocephala, Cx. pseudovishnui, Cx. tritaeniorhyncus, Cx. quinquefasciatus, and Cx. vishnui. Co-occurrence in mosquito larvae as many as 13 compositions, with the highest co-occurrence in Ae. albopictus and Cx. quinquefasciatus that was 11 times. There were seven types breeding sites for the larval mosquitoes, i.e containers, ditches, creeks, ponds, artificial ponds, groundwater puddles, and rice fields. We conclude the existence of mosquito larvae and the availability of their breeding site in M. fascicularis captivity area can be a potential transmission of pathogens between mosquitoes and hosts


2019 ◽  
Vol 3 (4) ◽  
pp. 141-143
Author(s):  
Indrajeet Singh ◽  
Naresh Sharma

The vector borne diseases of dengue and chikungunya mainly affect the African and South Asian countries. Its prevalence increases in the summer and monsoon seasons due to an  increase in breeding sites and External Incubation Period (EIP) of the virus. Primarily caused by an infectious bite of the Aedes aegypti female mosquito, this disease has a variety of systemic signs and symptoms. However, the oral manifesatations might be ignored. This review aims to enlightens the healthcare researchers with knowledge regarding the oral manifestations of dengue and chikungunya.


2020 ◽  
Vol 376 (1818) ◽  
pp. 20190807 ◽  
Author(s):  
Robert T. Jones ◽  
Elizabeth Pretorius ◽  
Thomas H. Ant ◽  
John Bradley ◽  
Anna Last ◽  
...  

Vector-borne diseases threaten the health of populations around the world. While key interventions continue to provide protection from vectors, there remains a need to develop and test new vector control tools. Cluster-randomized trials, in which the intervention or control is randomly allocated to clusters, are commonly selected for such evaluations, but their design must carefully consider cluster size and cluster separation, as well as the movement of people and vectors, to ensure sufficient statistical power and avoid contamination of results. Island settings present an opportunity to conduct these studies. Here, we explore the benefits and challenges of conducting intervention studies on islands and introduce the Bijagós archipelago of Guinea-Bissau as a potential study site for interventions intended to control vector-borne diseases. This article is part of the theme issue ‘Novel control strategies for mosquito-borne diseases'.


10.21149/8140 ◽  
2017 ◽  
Vol 60 (1, ene-feb) ◽  
pp. 77 ◽  
Author(s):  
Federico Alonso Zumaya-Estrada ◽  
María Carmen Rodríguez ◽  
Mario Henry Rodríguez

Pathogens ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 564 ◽  
Author(s):  
Simon Malassigné ◽  
Claire Valiente Moro ◽  
Patricia Luis

The growing expansion of mosquito vectors leads to the emergence of vector-borne diseases in new geographic areas and causes major public health concerns. In the absence of effective preventive treatments against most pathogens transmitted, vector control remains one of the most suitable strategies to prevent mosquito-borne diseases. Insecticide overuse raises mosquito resistance and deleterious impacts on the environment and non-target species. Growing knowledge of mosquito biology has allowed the development of alternative control methods. Following the concept of holobiont, mosquito-microbiota interactions play an important role in mosquito biology. Associated microbiota is known to influence many aspects of mosquito biology such as development, survival, immunity or even vector competence. Mosquito-associated microbiota is composed of bacteria, fungi, protists, viruses and nematodes. While an increasing number of studies have focused on bacteria, other microbial partners like fungi have been largely neglected despite their huge diversity. A better knowledge of mosquito-mycobiota interactions offers new opportunities to develop innovative mosquito control strategies. Here, we review the recent advances concerning the impact of mosquito-associated fungi, and particularly nonpathogenic fungi, on life-history traits (development, survival, reproduction), vector competence and behavior of mosquitoes by focusing on Culex, Aedes and Anopheles species.


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